# Formulate the recursive formula for the following geometric sequence. {-16, 4, -1, ...} ?

We can already discern a pattern by examining the sequence's first three terms.

Each term is divided by four and has its sign reversed starting at -16.

Thus, the series can be expressed as follows:

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The recursive formula for the given geometric sequence is:

( a_{n+1} = \frac{a_n}{-4} )

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- What is the 28th term of the sequence -6.4, -3.8, -1.2, 1.4?
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- What is the sum of the geometric series #Sigma 6(2)^n# from n=1 to 10?
- What is the sum of a 7–term geometric series if the first term is –11, the last term is –171,875, and the common ratio is –5?

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